Driving of rail and like vehicles.



H. PIEPER.

DRIVING OF RAIL AND LIKE VEHICLES. APPLICATION FILED-D3010, 1910.

1 ,O41,867, Patented 0013.22, 1912.

2 SHEETS-SHEET 1 H. PIEPER.

DRIVING OP RAIL AND LIKE VEHICLES. APPLICATION FILED DEC. 10, 1910.

1,041,867, Patented 0013.22, 1912.

2 SHEETS-SHEET 2.

Fig. E.

BEST AVAILABLE COPi HENRI PIEPER, or LIEGE, BELGIUM.

DRIVING- OF RAIL AND LIKE VEHICLES.

To all wlwm it my camera: 7

Be it knownthat'I, HENRI PIEPER, a subof the King of the Belgians, and residing at Liege, Belgium, have invented certain new and use ul Improvements in and Relating to the Driving of Rail and Like Vehicles, of-which the following is the specification.

- This invention'relates to the driving of rail and, like vehicles, and more particularly to "those having a power set comprising a dynamo electric machine adapted to. run

either as a dynamo or" motor mechanically connected with an internal combustion enhereiir referred to as the system.

1 It relates more particularly to rail vehiclesin which the wheel shafts do not remain parallel while traversing curves, that'is. to say, it refers more particularly to bogie or like constructions. 1 v

The invention has for its object to allow of the use of a power unit placed longitudinally with respect to the vehicle, and having a shaft transmission ofsuch nature that the displacement of the driving wheel shafts, either as the result of traveling upon curves or unevenness of the track, does not aifect the efliciency of transmission. v

This invention consists in a driving arrangement for a vehicle with bogie carriages having wheels .of unequal diameter the wheels oflarger diameter being arranged outside to. form the greater wheel base so that these wheels can be driven through a transmission shaft which can be substantially horizontal because of the low arrangement of the axles of the other wheels due to their smaller size.

" This invention also consists in an arrange- .ment. in which the power is transmitted through a Cardan shaft the joint of which is .mounted directly below the swiveling point of the bogie.

This invention also consists in a driving arrangement in which the power set is dis posed longitudinally of the vehicle and below the main body of the chassis, the drive being transmitted .from both ends of the set through Garden shafts to the outer wheels.

This invention further consists in a driving arrangement of the kind referred to above with the provision of electromagnetic clutches between the driving set and the transmission shafts.

This invention also consists in the im- Specification of Letters Patent. Applieation filerl December 10, 1910. Serial No. 596,695.

. Patented Oct. 22, 1912.

provements in and relating to vehicle driving hereinafter indicated.

Figures 1 and 2, respectively, show in elevation and in plan diagrammatically one form of -.the present invention in which bogies are employed.

Referring to Figs. 1 and 2, upon the chassis 2, and longitudinally with respect thereto,'is mounte a driving set comprising an internal combustion engine 3, a dynamo motor 4, and a battery 5, acting together in the well known manner. A controller 6, is provided inthe field circuit of'the dynamo motor, and a controller 7, is inserted in the armature circuit to efi'ect regulation as desired. f The common shaft of the set is provided at magnetic clutch 8, 9, controlled by a controller 10, to effect connection or disconnection as desired with the shafts 31, 32, connected thereto by the flexible couplings each extremity with a wheel shafts 13, and 14, by any suitable driving connection, for example, a bevel wheel drive inclosed within a suitable casing 15, 16. At the points 18, 19, which are points vertically below the centers about which the bogie trucks swivel, are provided Cardan joints. The pivots of the bogie trucks are shown at 20, 21. The bogie trucks in this form are provided with unequal wheels, the shafts 22, and 23, hearing the small wheel pairs 24, and 25, respectively, and the shafts 13, and 14, hearing the larger and driven wheel pairs 26, and 27, respectively.

It will be understood that the magnetic clutches shown are not essential, in that any other suitable form of clutch may be employed. Furthermore it is particularly desirable in most instances to arrange the clutch controller so, where magnetic clutches are employed, that the same lever acts simultaneously upon both clutches. This is shown in the. form indicated but is, however, not essential. p

It will be seen that in the forms indicated in Figs. 1 and 2, the Cardan joints 18, and 19, are so disposedthat, notwithstanding swiveling of the bogie during passage of the vehicle over curves, or notwithstanding displacements due to unevenness of the track, the transmission from the power unit to the driving track wheel shafts is unaffected. This arrangement is of particular advantage on tramway tracks where sharp BEST AVAlLABLE coPx curves areto be encountered. Furthermore a bogie with unequal wheels anddriven as indicated in Figs. 1, and 2, is, particularly advantageous, a bogie drive of the type tained.

' Having-thus described my invention, what vehicle, a flexible coupling disposed in the pivoting of.

vertical axis of the center of aforesaid. bogie truck, a connectmg element connecting said coupling to aforesaid power unit, a clutch interposed in said connecting element, and a drivingconnection between the aforesaid flexible couplin'g and aforesaid track' wheel. shaft; as setforth.

' 2. a rail vehicle, a power-unit, a driving shaft extending therefrom,"a clutch interposed in said drlving shaft, a bogie truck on'said vehicle, a driven track wheel shaft mounted in said bogie, track wheels thereon, a further track wheel shaft in said bogie and .track' wheels thereon of lesser size than aforesaid wheels, a flexible coupling disposed in the vertical axis of the center of pivoting of said bogie truck and connected to aforesaid driving shaft, and a driving connection between the $9,1d coupling and former of aforesaid track wheel shafts; as set forth. v

3. In a rail vehicle, a power unit dis osed longitudinally with respect to aforesald ve.- hicle driving shafts extending from both ends of said unit clutch elements interposed in said shafts,-swiveling elements carrying track wheel shafts, driving elements connecting aforesaid driving shafts to said track wheel shafts, and a flexible-coupling interposed in said driving shafts and dis posed in the vertical axis of the center of as set forth.

known as maximum traction being obswiveling of aforesaid swiveling elements; v a

including in combination a power unit, a bogie carriage including two pairs of wheels of different diameter, a shaft connecting the power unit to the wheels of larger diameter to drive the same, said shaft bemg disposed at a height above the center of the wheels of smaller diameter and a flexible coupling interposed in said driving'shaft and disposed in the'vertical axis of the center of said bogie truck; as set forth; a

5. A driving arrangement for vehicles including a power unit comprising a dynamo electric machine adapted to run either as a dynamo or as a motor mechanically connected with an internal combustion engine disposed longitudinally on aforesaid vehicle, a bogie truck, a flexible coupling disposed in the vertical axis of the center of pivoting of aforesaid bogie truck, a connecting element connecting said coupling to aforesaid power unit, a. clutch interposed in said connecting element, and a driving connection between the aforesaid flexible coupling and aforesaid vehicle wheel shaft; asset forth.

6. Adriving arrangement for'vehicles including a power-unit comprising a dynamo electric machine adapted to run either as a dynamo or as a 'motor mechanically connected with an internal combustion engine, a bogie carriage including two pairs of wheels of different diameter, a shaft connecting the power unit to the wheelsof larger diameter to drive the same, said shaft being disposed at a heightabove the center HENRI PIEPER.

l/Vitnesses I SAM. HEP'rIN, L. BERoK. 

